If you are looking for a set of deburring chamfering tool that in high quality and meet your different demands, this one is it.<br><br><strong>Features:</strong><br>High frequency quenching, high hardness.<br>High carbon steel chamfer cutter countersink set.<br>Performed well in chamfering, deburring, bore-hole.<br>Suitable for punching in wood, plastic and other sheet material in low hardness.<br>3 sizes(12mm, 16mm, 19mm) in one set, which meet your different needs perfectly.<br><br><strong>Specifications:</strong><br>Material: High carbon steel<br>Surface Treatment: Black coating<br>Heat Treatment: High frequency quenching<br>Hex Shank Diameter: Approx. 6.35mm (1/4 inch hexagonal shank)<br>Package Weight: Approx. 97g / 3.43oz<br>Package Size: Approx. 7.5 * 7 * 1.8cm / 2.95 * 2.76 * 0.71in<br><br><strong>Package List:</strong><br>3 * Tool<br><br><strong>Note:</strong><br>Do not chamfering and other processing with the high hardness product(such as stainless steel, metal).